From bc5e6d289ed40efec2b0e03427e8fc2947bf53e3 Mon Sep 17 00:00:00 2001 From: dsinclair Date: Tue, 4 Oct 2016 11:08:49 -0700 Subject: Move core/fpdfapi/fpdf_font to core/fpdfapi/font BUG=pdfium:603 Review-Url: https://codereview.chromium.org/2392773003 --- core/fpdfapi/fpdf_font/fpdf_font_cid.cpp | 784 ------------------------------- 1 file changed, 784 deletions(-) delete mode 100644 core/fpdfapi/fpdf_font/fpdf_font_cid.cpp (limited to 'core/fpdfapi/fpdf_font/fpdf_font_cid.cpp') diff --git a/core/fpdfapi/fpdf_font/fpdf_font_cid.cpp b/core/fpdfapi/fpdf_font/fpdf_font_cid.cpp deleted file mode 100644 index 91117122aa..0000000000 --- a/core/fpdfapi/fpdf_font/fpdf_font_cid.cpp +++ /dev/null @@ -1,784 +0,0 @@ -// Copyright 2014 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com - -#include "core/fpdfapi/fpdf_font/font_int.h" - -#include "core/fpdfapi/cmaps/cmap_int.h" -#include "core/fpdfapi/cpdf_modulemgr.h" -#include "core/fpdfapi/fpdf_font/ttgsubtable.h" -#include "core/fpdfapi/fpdf_page/cpdf_pagemodule.h" -#include "core/fpdfapi/fpdf_parser/cpdf_array.h" -#include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h" -#include "core/fpdfapi/fpdf_parser/cpdf_simple_parser.h" -#include "core/fxcrt/fx_ext.h" -#include "core/fxge/fx_freetype.h" - -namespace { - -const FX_CHAR* const g_CharsetNames[CIDSET_NUM_SETS] = { - nullptr, "GB1", "CNS1", "Japan1", "Korea1", "UCS"}; - - -class CPDF_PredefinedCMap { - public: - const FX_CHAR* m_pName; - CIDSet m_Charset; - CIDCoding m_Coding; - CPDF_CMap::CodingScheme m_CodingScheme; - uint8_t m_LeadingSegCount; - uint8_t m_LeadingSegs[4]; -}; - -const CPDF_PredefinedCMap g_PredefinedCMaps[] = { - {"GB-EUC", - CIDSET_GB1, - CIDCODING_GB, - CPDF_CMap::MixedTwoBytes, - 1, - {0xa1, 0xfe}}, - {"GBpc-EUC", - CIDSET_GB1, - CIDCODING_GB, - CPDF_CMap::MixedTwoBytes, - 1, - {0xa1, 0xfc}}, - {"GBK-EUC", - CIDSET_GB1, - CIDCODING_GB, - CPDF_CMap::MixedTwoBytes, - 1, - {0x81, 0xfe}}, - {"GBKp-EUC", - CIDSET_GB1, - CIDCODING_GB, - CPDF_CMap::MixedTwoBytes, - 1, - {0x81, 0xfe}}, - {"GBK2K-EUC", - CIDSET_GB1, - CIDCODING_GB, - CPDF_CMap::MixedTwoBytes, - 1, - {0x81, 0xfe}}, - {"GBK2K", - CIDSET_GB1, - CIDCODING_GB, - CPDF_CMap::MixedTwoBytes, - 1, - {0x81, 0xfe}}, - {"UniGB-UCS2", CIDSET_GB1, CIDCODING_UCS2, CPDF_CMap::TwoBytes, 0, {}}, - {"UniGB-UTF16", CIDSET_GB1, CIDCODING_UTF16, CPDF_CMap::TwoBytes, 0, {}}, - {"B5pc", - CIDSET_CNS1, - CIDCODING_BIG5, - CPDF_CMap::MixedTwoBytes, - 1, - {0xa1, 0xfc}}, - {"HKscs-B5", - CIDSET_CNS1, - CIDCODING_BIG5, - CPDF_CMap::MixedTwoBytes, - 1, - {0x88, 0xfe}}, - {"ETen-B5", - CIDSET_CNS1, - CIDCODING_BIG5, - CPDF_CMap::MixedTwoBytes, - 1, - {0xa1, 0xfe}}, - {"ETenms-B5", - CIDSET_CNS1, - CIDCODING_BIG5, - CPDF_CMap::MixedTwoBytes, - 1, - {0xa1, 0xfe}}, - {"UniCNS-UCS2", CIDSET_CNS1, CIDCODING_UCS2, CPDF_CMap::TwoBytes, 0, {}}, - {"UniCNS-UTF16", CIDSET_CNS1, CIDCODING_UTF16, CPDF_CMap::TwoBytes, 0, {}}, - {"83pv-RKSJ", - CIDSET_JAPAN1, - CIDCODING_JIS, - CPDF_CMap::MixedTwoBytes, - 2, - {0x81, 0x9f, 0xe0, 0xfc}}, - {"90ms-RKSJ", - CIDSET_JAPAN1, - CIDCODING_JIS, - CPDF_CMap::MixedTwoBytes, - 2, - {0x81, 0x9f, 0xe0, 0xfc}}, - {"90msp-RKSJ", - CIDSET_JAPAN1, - CIDCODING_JIS, - CPDF_CMap::MixedTwoBytes, - 2, - {0x81, 0x9f, 0xe0, 0xfc}}, - {"90pv-RKSJ", - CIDSET_JAPAN1, - CIDCODING_JIS, - CPDF_CMap::MixedTwoBytes, - 2, - {0x81, 0x9f, 0xe0, 0xfc}}, - {"Add-RKSJ", - CIDSET_JAPAN1, - CIDCODING_JIS, - CPDF_CMap::MixedTwoBytes, - 2, - {0x81, 0x9f, 0xe0, 0xfc}}, - {"EUC", - CIDSET_JAPAN1, - CIDCODING_JIS, - CPDF_CMap::MixedTwoBytes, - 2, - {0x8e, 0x8e, 0xa1, 0xfe}}, - {"H", CIDSET_JAPAN1, CIDCODING_JIS, CPDF_CMap::TwoBytes, 1, {0x21, 0x7e}}, - {"V", CIDSET_JAPAN1, CIDCODING_JIS, CPDF_CMap::TwoBytes, 1, {0x21, 0x7e}}, - {"Ext-RKSJ", - CIDSET_JAPAN1, - CIDCODING_JIS, - CPDF_CMap::MixedTwoBytes, - 2, - {0x81, 0x9f, 0xe0, 0xfc}}, - {"UniJIS-UCS2", CIDSET_JAPAN1, CIDCODING_UCS2, CPDF_CMap::TwoBytes, 0, {}}, - {"UniJIS-UCS2-HW", - CIDSET_JAPAN1, - CIDCODING_UCS2, - CPDF_CMap::TwoBytes, - 0, - {}}, - {"UniJIS-UTF16", - CIDSET_JAPAN1, - CIDCODING_UTF16, - CPDF_CMap::TwoBytes, - 0, - {}}, - {"KSC-EUC", - CIDSET_KOREA1, - CIDCODING_KOREA, - CPDF_CMap::MixedTwoBytes, - 1, - {0xa1, 0xfe}}, - {"KSCms-UHC", - CIDSET_KOREA1, - CIDCODING_KOREA, - CPDF_CMap::MixedTwoBytes, - 1, - {0x81, 0xfe}}, - {"KSCms-UHC-HW", - CIDSET_KOREA1, - CIDCODING_KOREA, - CPDF_CMap::MixedTwoBytes, - 1, - {0x81, 0xfe}}, - {"KSCpc-EUC", - CIDSET_KOREA1, - CIDCODING_KOREA, - CPDF_CMap::MixedTwoBytes, - 1, - {0xa1, 0xfd}}, - {"UniKS-UCS2", CIDSET_KOREA1, CIDCODING_UCS2, CPDF_CMap::TwoBytes, 0, {}}, - {"UniKS-UTF16", CIDSET_KOREA1, CIDCODING_UTF16, CPDF_CMap::TwoBytes, 0, {}}, -}; - -CIDSet CIDSetFromSizeT(size_t index) { - if (index >= CIDSET_NUM_SETS) { - NOTREACHED(); - return CIDSET_UNKNOWN; - } - return static_cast(index); -} - -CFX_ByteStringC CMap_GetString(const CFX_ByteStringC& word) { - if (word.GetLength() <= 2) - return CFX_ByteStringC(); - return CFX_ByteStringC(&word[1], word.GetLength() - 2); -} - -int CompareDWORD(const void* data1, const void* data2) { - return (*(uint32_t*)data1) - (*(uint32_t*)data2); -} - -int CompareCID(const void* key, const void* element) { - if ((*(uint32_t*)key) < (*(uint32_t*)element)) { - return -1; - } - if ((*(uint32_t*)key) > - (*(uint32_t*)element) + ((uint32_t*)element)[1] / 65536) { - return 1; - } - return 0; -} - -int CheckCodeRange(uint8_t* codes, - int size, - CMap_CodeRange* pRanges, - int nRanges) { - int iSeg = nRanges - 1; - while (iSeg >= 0) { - if (pRanges[iSeg].m_CharSize < size) { - --iSeg; - continue; - } - int iChar = 0; - while (iChar < size) { - if (codes[iChar] < pRanges[iSeg].m_Lower[iChar] || - codes[iChar] > pRanges[iSeg].m_Upper[iChar]) { - break; - } - ++iChar; - } - if (iChar == pRanges[iSeg].m_CharSize) - return 2; - - if (iChar) - return (size == pRanges[iSeg].m_CharSize) ? 2 : 1; - iSeg--; - } - return 0; -} - -int GetCharSizeImpl(uint32_t charcode, - CMap_CodeRange* pRanges, - int iRangesSize) { - if (!iRangesSize) - return 1; - - uint8_t codes[4]; - codes[0] = codes[1] = 0x00; - codes[2] = (uint8_t)(charcode >> 8 & 0xFF); - codes[3] = (uint8_t)charcode; - int offset = 0; - int size = 4; - for (int i = 0; i < 4; ++i) { - int iSeg = iRangesSize - 1; - while (iSeg >= 0) { - if (pRanges[iSeg].m_CharSize < size) { - --iSeg; - continue; - } - int iChar = 0; - while (iChar < size) { - if (codes[offset + iChar] < pRanges[iSeg].m_Lower[iChar] || - codes[offset + iChar] > pRanges[iSeg].m_Upper[iChar]) { - break; - } - ++iChar; - } - if (iChar == pRanges[iSeg].m_CharSize) - return size; - --iSeg; - } - --size; - ++offset; - } - return 1; -} - -} // namespace - -CPDF_CMapManager::CPDF_CMapManager() { - FXSYS_memset(m_CID2UnicodeMaps, 0, sizeof m_CID2UnicodeMaps); -} -CPDF_CMapManager::~CPDF_CMapManager() { - for (const auto& pair : m_CMaps) { - delete pair.second; - } - m_CMaps.clear(); - for (size_t i = 0; i < FX_ArraySize(m_CID2UnicodeMaps); ++i) { - delete m_CID2UnicodeMaps[i]; - } -} -CPDF_CMap* CPDF_CMapManager::GetPredefinedCMap(const CFX_ByteString& name, - bool bPromptCJK) { - auto it = m_CMaps.find(name); - if (it != m_CMaps.end()) { - return it->second; - } - CPDF_CMap* pCMap = LoadPredefinedCMap(name, bPromptCJK); - if (!name.IsEmpty()) { - m_CMaps[name] = pCMap; - } - return pCMap; -} -CPDF_CMap* CPDF_CMapManager::LoadPredefinedCMap(const CFX_ByteString& name, - bool bPromptCJK) { - CPDF_CMap* pCMap = new CPDF_CMap; - const FX_CHAR* pname = name.c_str(); - if (*pname == '/') { - pname++; - } - pCMap->LoadPredefined(this, pname, bPromptCJK); - return pCMap; -} - -CPDF_CID2UnicodeMap* CPDF_CMapManager::GetCID2UnicodeMap(CIDSet charset, - bool bPromptCJK) { - if (!m_CID2UnicodeMaps[charset]) - m_CID2UnicodeMaps[charset] = LoadCID2UnicodeMap(charset, bPromptCJK); - return m_CID2UnicodeMaps[charset]; -} -CPDF_CID2UnicodeMap* CPDF_CMapManager::LoadCID2UnicodeMap(CIDSet charset, - bool bPromptCJK) { - CPDF_CID2UnicodeMap* pMap = new CPDF_CID2UnicodeMap(); - pMap->Load(this, charset, bPromptCJK); - return pMap; -} - -CPDF_CMapParser::CPDF_CMapParser() - : m_pCMap(nullptr), m_Status(0), m_CodeSeq(0) {} - -CPDF_CMapParser::~CPDF_CMapParser() {} - -void CPDF_CMapParser::Initialize(CPDF_CMap* pCMap) { - m_pCMap = pCMap; - m_Status = 0; - m_CodeSeq = 0; - m_AddMaps.EstimateSize(0, 10240); -} - -void CPDF_CMapParser::ParseWord(const CFX_ByteStringC& word) { - if (word.IsEmpty()) { - return; - } - if (word == "begincidchar") { - m_Status = 1; - m_CodeSeq = 0; - } else if (word == "begincidrange") { - m_Status = 2; - m_CodeSeq = 0; - } else if (word == "endcidrange" || word == "endcidchar") { - m_Status = 0; - } else if (word == "/WMode") { - m_Status = 6; - } else if (word == "/Registry") { - m_Status = 3; - } else if (word == "/Ordering") { - m_Status = 4; - } else if (word == "/Supplement") { - m_Status = 5; - } else if (word == "begincodespacerange") { - m_Status = 7; - m_CodeSeq = 0; - } else if (word == "usecmap") { - } else if (m_Status == 1 || m_Status == 2) { - m_CodePoints[m_CodeSeq] = CMap_GetCode(word); - m_CodeSeq++; - uint32_t StartCode, EndCode; - uint16_t StartCID; - if (m_Status == 1) { - if (m_CodeSeq < 2) { - return; - } - EndCode = StartCode = m_CodePoints[0]; - StartCID = (uint16_t)m_CodePoints[1]; - } else { - if (m_CodeSeq < 3) { - return; - } - StartCode = m_CodePoints[0]; - EndCode = m_CodePoints[1]; - StartCID = (uint16_t)m_CodePoints[2]; - } - if (EndCode < 0x10000) { - for (uint32_t code = StartCode; code <= EndCode; code++) { - m_pCMap->m_pMapping[code] = (uint16_t)(StartCID + code - StartCode); - } - } else { - uint32_t buf[2]; - buf[0] = StartCode; - buf[1] = ((EndCode - StartCode) << 16) + StartCID; - m_AddMaps.AppendBlock(buf, sizeof buf); - } - m_CodeSeq = 0; - } else if (m_Status == 3) { - m_Status = 0; - } else if (m_Status == 4) { - m_pCMap->m_Charset = CharsetFromOrdering(CMap_GetString(word)); - m_Status = 0; - } else if (m_Status == 5) { - m_Status = 0; - } else if (m_Status == 6) { - m_pCMap->m_bVertical = CMap_GetCode(word) != 0; - m_Status = 0; - } else if (m_Status == 7) { - if (word == "endcodespacerange") { - int nSegs = m_CodeRanges.GetSize(); - if (nSegs > 1) { - m_pCMap->m_CodingScheme = CPDF_CMap::MixedFourBytes; - m_pCMap->m_nCodeRanges = nSegs; - FX_Free(m_pCMap->m_pLeadingBytes); - m_pCMap->m_pLeadingBytes = - FX_Alloc2D(uint8_t, nSegs, sizeof(CMap_CodeRange)); - FXSYS_memcpy(m_pCMap->m_pLeadingBytes, m_CodeRanges.GetData(), - nSegs * sizeof(CMap_CodeRange)); - } else if (nSegs == 1) { - m_pCMap->m_CodingScheme = (m_CodeRanges[0].m_CharSize == 2) - ? CPDF_CMap::TwoBytes - : CPDF_CMap::OneByte; - } - m_Status = 0; - } else { - if (word.GetLength() == 0 || word.GetAt(0) != '<') { - return; - } - if (m_CodeSeq % 2) { - CMap_CodeRange range; - if (CMap_GetCodeRange(range, m_LastWord.AsStringC(), word)) { - m_CodeRanges.Add(range); - } - } - m_CodeSeq++; - } - } - m_LastWord = word; -} - -// Static. -uint32_t CPDF_CMapParser::CMap_GetCode(const CFX_ByteStringC& word) { - pdfium::base::CheckedNumeric num = 0; - if (word.GetAt(0) == '<') { - for (int i = 1; i < word.GetLength() && std::isxdigit(word.GetAt(i)); ++i) { - num = num * 16 + FXSYS_toHexDigit(word.GetAt(i)); - if (!num.IsValid()) - return 0; - } - return num.ValueOrDie(); - } - - for (int i = 0; i < word.GetLength() && std::isdigit(word.GetAt(i)); ++i) { - num = num * 10 + FXSYS_toDecimalDigit(static_cast(word.GetAt(i))); - if (!num.IsValid()) - return 0; - } - return num.ValueOrDie(); -} - -// Static. -bool CPDF_CMapParser::CMap_GetCodeRange(CMap_CodeRange& range, - const CFX_ByteStringC& first, - const CFX_ByteStringC& second) { - if (first.GetLength() == 0 || first.GetAt(0) != '<') - return false; - - int i; - for (i = 1; i < first.GetLength(); ++i) { - if (first.GetAt(i) == '>') { - break; - } - } - range.m_CharSize = (i - 1) / 2; - if (range.m_CharSize > 4) - return false; - - for (i = 0; i < range.m_CharSize; ++i) { - uint8_t digit1 = first.GetAt(i * 2 + 1); - uint8_t digit2 = first.GetAt(i * 2 + 2); - range.m_Lower[i] = FXSYS_toHexDigit(digit1) * 16 + FXSYS_toHexDigit(digit2); - } - - uint32_t size = second.GetLength(); - for (i = 0; i < range.m_CharSize; ++i) { - uint8_t digit1 = ((uint32_t)i * 2 + 1 < size) - ? second.GetAt((FX_STRSIZE)i * 2 + 1) - : '0'; - uint8_t digit2 = ((uint32_t)i * 2 + 2 < size) - ? second.GetAt((FX_STRSIZE)i * 2 + 2) - : '0'; - range.m_Upper[i] = FXSYS_toHexDigit(digit1) * 16 + FXSYS_toHexDigit(digit2); - } - return true; -} - -CPDF_CMap::CPDF_CMap() { - m_Charset = CIDSET_UNKNOWN; - m_Coding = CIDCODING_UNKNOWN; - m_CodingScheme = TwoBytes; - m_bVertical = false; - m_bLoaded = false; - m_pMapping = nullptr; - m_pLeadingBytes = nullptr; - m_pAddMapping = nullptr; - m_pEmbedMap = nullptr; - m_nCodeRanges = 0; -} -CPDF_CMap::~CPDF_CMap() { - FX_Free(m_pMapping); - FX_Free(m_pAddMapping); - FX_Free(m_pLeadingBytes); -} - -bool CPDF_CMap::IsLoaded() const { - return m_bLoaded; -} - -bool CPDF_CMap::IsVertWriting() const { - return m_bVertical; -} - -void CPDF_CMap::LoadPredefined(CPDF_CMapManager* pMgr, - const CFX_ByteString& bsName, - bool bPromptCJK) { - m_PredefinedCMap = bsName; - if (m_PredefinedCMap == "Identity-H" || m_PredefinedCMap == "Identity-V") { - m_Coding = CIDCODING_CID; - m_bVertical = bsName[9] == 'V'; - m_bLoaded = true; - return; - } - CFX_ByteString cmapid = m_PredefinedCMap; - m_bVertical = cmapid.Right(1) == "V"; - if (cmapid.GetLength() > 2) { - cmapid = cmapid.Left(cmapid.GetLength() - 2); - } - const CPDF_PredefinedCMap* map = nullptr; - for (size_t i = 0; i < FX_ArraySize(g_PredefinedCMaps); ++i) { - if (cmapid == CFX_ByteStringC(g_PredefinedCMaps[i].m_pName)) { - map = &g_PredefinedCMaps[i]; - break; - } - } - if (!map) - return; - - m_Charset = map->m_Charset; - m_Coding = map->m_Coding; - m_CodingScheme = map->m_CodingScheme; - if (m_CodingScheme == MixedTwoBytes) { - m_pLeadingBytes = FX_Alloc(uint8_t, 256); - for (uint32_t i = 0; i < map->m_LeadingSegCount; ++i) { - const uint8_t* segs = map->m_LeadingSegs; - for (int b = segs[i * 2]; b <= segs[i * 2 + 1]; ++b) { - m_pLeadingBytes[b] = 1; - } - } - } - FPDFAPI_FindEmbeddedCMap(bsName, m_Charset, m_Coding, m_pEmbedMap); - if (!m_pEmbedMap) - return; - - m_bLoaded = true; -} - -void CPDF_CMap::LoadEmbedded(const uint8_t* pData, uint32_t size) { - m_pMapping = FX_Alloc(uint16_t, 65536); - CPDF_CMapParser parser; - parser.Initialize(this); - CPDF_SimpleParser syntax(pData, size); - while (1) { - CFX_ByteStringC word = syntax.GetWord(); - if (word.IsEmpty()) { - break; - } - parser.ParseWord(word); - } - if (m_CodingScheme == MixedFourBytes && parser.m_AddMaps.GetSize()) { - m_pAddMapping = FX_Alloc(uint8_t, parser.m_AddMaps.GetSize() + 4); - *(uint32_t*)m_pAddMapping = parser.m_AddMaps.GetSize() / 8; - FXSYS_memcpy(m_pAddMapping + 4, parser.m_AddMaps.GetBuffer(), - parser.m_AddMaps.GetSize()); - FXSYS_qsort(m_pAddMapping + 4, parser.m_AddMaps.GetSize() / 8, 8, - CompareDWORD); - } -} - -uint16_t CPDF_CMap::CIDFromCharCode(uint32_t charcode) const { - if (m_Coding == CIDCODING_CID) { - return (uint16_t)charcode; - } - if (m_pEmbedMap) { - return FPDFAPI_CIDFromCharCode(m_pEmbedMap, charcode); - } - if (!m_pMapping) { - return (uint16_t)charcode; - } - if (charcode >> 16) { - if (m_pAddMapping) { - void* found = FXSYS_bsearch(&charcode, m_pAddMapping + 4, - *(uint32_t*)m_pAddMapping, 8, CompareCID); - if (!found) - return 0; - return (uint16_t)(((uint32_t*)found)[1] % 65536 + charcode - - *(uint32_t*)found); - } - return 0; - } - return m_pMapping[charcode]; -} - -uint32_t CPDF_CMap::GetNextChar(const FX_CHAR* pString, - int nStrLen, - int& offset) const { - switch (m_CodingScheme) { - case OneByte: - return ((uint8_t*)pString)[offset++]; - case TwoBytes: - offset += 2; - return ((uint8_t*)pString)[offset - 2] * 256 + - ((uint8_t*)pString)[offset - 1]; - case MixedTwoBytes: { - uint8_t byte1 = ((uint8_t*)pString)[offset++]; - if (!m_pLeadingBytes[byte1]) { - return byte1; - } - uint8_t byte2 = ((uint8_t*)pString)[offset++]; - return byte1 * 256 + byte2; - } - case MixedFourBytes: { - uint8_t codes[4]; - int char_size = 1; - codes[0] = ((uint8_t*)pString)[offset++]; - CMap_CodeRange* pRanges = (CMap_CodeRange*)m_pLeadingBytes; - while (1) { - int ret = CheckCodeRange(codes, char_size, pRanges, m_nCodeRanges); - if (ret == 0) { - return 0; - } - if (ret == 2) { - uint32_t charcode = 0; - for (int i = 0; i < char_size; i++) { - charcode = (charcode << 8) + codes[i]; - } - return charcode; - } - if (char_size == 4 || offset == nStrLen) { - return 0; - } - codes[char_size++] = ((uint8_t*)pString)[offset++]; - } - break; - } - } - return 0; -} -int CPDF_CMap::GetCharSize(uint32_t charcode) const { - switch (m_CodingScheme) { - case OneByte: - return 1; - case TwoBytes: - return 2; - case MixedTwoBytes: - case MixedFourBytes: - if (charcode < 0x100) { - return 1; - } - if (charcode < 0x10000) { - return 2; - } - if (charcode < 0x1000000) { - return 3; - } - return 4; - } - return 1; -} -int CPDF_CMap::CountChar(const FX_CHAR* pString, int size) const { - switch (m_CodingScheme) { - case OneByte: - return size; - case TwoBytes: - return (size + 1) / 2; - case MixedTwoBytes: { - int count = 0; - for (int i = 0; i < size; i++) { - count++; - if (m_pLeadingBytes[((uint8_t*)pString)[i]]) { - i++; - } - } - return count; - } - case MixedFourBytes: { - int count = 0, offset = 0; - while (offset < size) { - GetNextChar(pString, size, offset); - count++; - } - return count; - } - } - return size; -} - -int CPDF_CMap::AppendChar(FX_CHAR* str, uint32_t charcode) const { - switch (m_CodingScheme) { - case OneByte: - str[0] = (uint8_t)charcode; - return 1; - case TwoBytes: - str[0] = (uint8_t)(charcode / 256); - str[1] = (uint8_t)(charcode % 256); - return 2; - case MixedTwoBytes: - case MixedFourBytes: - if (charcode < 0x100) { - CMap_CodeRange* pRanges = (CMap_CodeRange*)m_pLeadingBytes; - int iSize = GetCharSizeImpl(charcode, pRanges, m_nCodeRanges); - if (iSize == 0) { - iSize = 1; - } - if (iSize > 1) { - FXSYS_memset(str, 0, sizeof(uint8_t) * iSize); - } - str[iSize - 1] = (uint8_t)charcode; - return iSize; - } - if (charcode < 0x10000) { - str[0] = (uint8_t)(charcode >> 8); - str[1] = (uint8_t)charcode; - return 2; - } - if (charcode < 0x1000000) { - str[0] = (uint8_t)(charcode >> 16); - str[1] = (uint8_t)(charcode >> 8); - str[2] = (uint8_t)charcode; - return 3; - } - str[0] = (uint8_t)(charcode >> 24); - str[1] = (uint8_t)(charcode >> 16); - str[2] = (uint8_t)(charcode >> 8); - str[3] = (uint8_t)charcode; - return 4; - } - return 0; -} - -CPDF_CID2UnicodeMap::CPDF_CID2UnicodeMap() { - m_EmbeddedCount = 0; -} - -CPDF_CID2UnicodeMap::~CPDF_CID2UnicodeMap() {} - -bool CPDF_CID2UnicodeMap::IsLoaded() { - return m_EmbeddedCount != 0; -} - -FX_WCHAR CPDF_CID2UnicodeMap::UnicodeFromCID(uint16_t CID) { - if (m_Charset == CIDSET_UNICODE) { - return CID; - } - if (CID < m_EmbeddedCount) { - return m_pEmbeddedMap[CID]; - } - return 0; -} - -void CPDF_CID2UnicodeMap::Load(CPDF_CMapManager* pMgr, - CIDSet charset, - bool bPromptCJK) { - m_Charset = charset; - - CPDF_FontGlobals* pFontGlobals = - CPDF_ModuleMgr::Get()->GetPageModule()->GetFontGlobals(); - m_pEmbeddedMap = pFontGlobals->m_EmbeddedToUnicodes[charset].m_pMap; - m_EmbeddedCount = pFontGlobals->m_EmbeddedToUnicodes[charset].m_Count; -} - -CIDSet CharsetFromOrdering(const CFX_ByteStringC& ordering) { - for (size_t charset = 1; charset < FX_ArraySize(g_CharsetNames); ++charset) { - if (ordering == g_CharsetNames[charset]) - return CIDSetFromSizeT(charset); - } - return CIDSET_UNKNOWN; -} -- cgit v1.2.3